In 27 Pieces: The Hilary Hahn Encores comes out Nov. 11. Michael Patrick O'Leary/Courtesy of the artist hide caption

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The mountainside Montserrat monastery, north of Barcelona, inspired Paul Moravec to write a cello concerto. Luis Davilla/Cover/Getty Images hide caption

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Dwight D. Eisenhower became president after an illustrious military career. Wikimedia Commons hide caption

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